set nu
syntax on
set noshowmode
set mouse=a
set autoindent
set softtabstop=4
set cursorline
" https://segmentfault.com/a/1190000021101602
set list
set listchars=tab:>-,space:·
highlight TabSpaceColor guifg=darkgrey ctermfg=darkgrey
match TabSpaceColor /\t\| /